Sowerby, G. B. I; Sowerby, G. B. II. (1833-1840).
Chiton. In:
The Conchological Illustrations or, Coloured figures of all the hitherto unfigured recent shells. London, privately published. Parts 38-45, figs 1-55 [1833 (-1834?)] [G.B. Sowerby II]; 159-160, figs 56-67 [1839] [G.B. Sowerby I]; 161-176, figs 68-155 [1839-1840] [G.B. Sowerby II]. Catalogue and index, 10 pp + 7 pp. [Descriptive catalogue of British chitones] [1840].